Fusion cross sections for reactions involving medium and heavy nucleus-nucleus systems

Atta, Debasis; Basu, Debabrata

doi:10.1103/physrevc.90.064622

“…And for p-11 B, a more prominent selective resonance around 650 KeV (647.22 keV, 1.09 barn) for the data-set-0 (Figure 4) and around 760 keV (760.024 keV, 0.635 barn) for data-set-1 (Figure 5) respectively. Yet calculations for fusion cross-section involving heavy and medium mass nucleus-nucleus systems, need a different treatment [28].…”

Section: Resultsmentioning

confidence: 99%

Study of Fusion Reactions of Light Nuclei at Low Energies Using Complex Nucleon-Nucleus Potential Function

2023

Bulg.J.Phys.

0

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Nuclear fusion reactions, at energies, far below the Coulomb barrier play a significant role in the synthesis of light elements in the primordial nucleosynthesis as well as in the interior of compact stellar objects. Many different kinds of nuclear reactions are occurring simultaneously inside the stellar core depending upon the density and temperature conditions of the nuclear plasma along with other relevant parameters of these stars. Nuclear fusion reactions in the energy range (E ∼ 1 eV to few keV) can be explained successfully by quantum mechanical tunneling through the mutual Coulomb barrier of interacting nuclei. The measurement of the cross-sections at extremely low energy is quite difficult because of the larger width of the Coulomb barrier, which results in a very small value of the reaction cross-section. Hence, any improvement in the data on astrophysical S-factors for the light nuclei fusion may give a better picture of the elemental abundance in nucleosynthesis. In this work, we have theoretically investigated the energy dependence of fusion cross-sections and astrophysical S-factors for fusion reaction of light nuclei like D-D and p-11 B using complex Gaussian nuclear potential with adjustable depth and range parameters plus the mutual Coulomb interaction of the interacting nuclei. Numerical computation of the observables is done in the framework of the selective resonant tunneling model approach. The results of our calculation are compared with those found in the literature.

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“…And for p-11 B, a more prominent selective resonance around 650 KeV (647.22 keV, 1.09 barn) for the data-set-0 (Figure 4) and around 760 keV (760.024 keV, 0.635 barn) for dataset-1 (Figure 5) respectively. Yet calculations for fusion cross-section involving heavy and medium mass nucleus-nucleus systems, need a different treatment [28].…”

Section: Resultsmentioning

confidence: 99%

Study of fusion reactions of light nuclei at low energies using complex nucleon-nucleus potential function

Khan¹,

Mondal²,

Alam³

et al. 2021

Preprint

0

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Nuclear fusion reactions, at energies, far below the Coulomb barrier play a significant role in the synthesis of light elements in the primordial nucleosynthesis as well as in the interior of compact stellar objects. Many different kinds of nuclear reactions are occurring simultaneously inside the stellar core depending upon the density and temperature conditions of the nuclear plasma along with other relevant parameters of these stars. Nuclear fusion reactions in the energy range (E ∼ 1 eV to few keV) can be explained successfully by quantum mechanical tunneling through the mutual Coulomb barrier of interacting nuclei. The measurement of the cross-sections at extremely low energy is quite difficult because of the larger width of the Coulomb barrier, which results in a very small value of the reaction cross-section. Hence, any improvement in the data on astrophysical S-factors for the light nuclei fusion may give a better picture of the elemental abundance in nucleosynthesis. In this work, we have theoretically investigated the energy dependence of fusion cross-sections and astrophysical S-factors for fusion reaction of light nuclei like D-D and p-11 B using complex Gaussian nuclear potential with adjustable depth and range parameters plus the mutual Coulomb interaction of the interacting nuclei. Numerical computation of the observables is done in the framework of the selective resonant tunneling model approach. The results of our calculation are compared with those found in the literature.

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Sub-barrier fusion hindrance and absence of neutron transfer channels

Singh

¹

,

Lahiri

²

,

Chowdhury

³

et al. 2023

Indian J Phys

0

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Fusion cross sections for reactions involving medium and heavy nucleus-nucleus systems

Cited by 5 publications

References 34 publications

Study of Fusion Reactions of Light Nuclei at Low Energies Using Complex Nucleon-Nucleus Potential Function

Study of Fusion Reactions of Light Nuclei at Low Energies Using Complex Nucleon-Nucleus Potential Function

Study of fusion reactions of light nuclei at low energies using complex nucleon-nucleus potential function

Sub-barrier fusion hindrance and absence of neutron transfer channels

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